java后台访问url
中心编码问题是一个老问题了，一直没得到很好的解决，望大牛们指点迷津

public static String callUrlByGet(String callurl,String charset){String result = "";try {URL url = new URL(callurl);URLConnection connection = url.openConnection();connection.connect();BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),charset));String line;while((line = reader.readLine())!= null){result += line;result += "\n";}} catch (Exception e) {e.printStackTrace();return "";}return result;}